Each level increases the size of your Garden grid. A Level 9 Farm provides a 6x6 plot, which is the maximum size. This is critical because: It allows for efficient crossbreeding of rare seeds.
Work from highest-producing buildings to lowest. Priority 4: The Strategic Reserve (The 100 Lump Rule) best cookie clicker sugar lump upgrades
(The Alternative)
In the late game of Cookie Clicker , Sugar Lumps become the primary resource for progression. While you start earning them slowly, spending them wisely is the difference between a stagnant bakery and an exponential empire. Each level increases the size of your Garden grid
Sugar Lumps are a rare resource (1 grows every ~20 hours real time). You spend them on: best cookie clicker sugar lump upgrades